zebrad::components::mempool

Struct Crawler

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pub struct Crawler<PeerSet, Mempool> {
    peer_set: Timeout<PeerSet>,
    mempool: Mempool,
    sync_status: SyncStatus,
    chain_tip_change: ChainTipChange,
    debug_enable_at_height: Option<Height>,
}
Expand description

The mempool transaction crawler.

Fields§

§peer_set: Timeout<PeerSet>

The network peer set to crawl.

§mempool: Mempool

The mempool service that receives crawled transaction IDs.

§sync_status: SyncStatus

Allows checking if we are near the tip to enable/disable the mempool crawler.

§chain_tip_change: ChainTipChange

Notifies the crawler when the best chain tip height changes.

§debug_enable_at_height: Option<Height>

If the state’s best chain tip has reached this height, always enable the mempool crawler.

Implementations§

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impl<PeerSet, Mempool> Crawler<PeerSet, Mempool>
where PeerSet: Service<Request, Response = Response, Error = BoxError> + Clone + Send + 'static, PeerSet::Future: Send, Mempool: Service<Request, Response = Response, Error = BoxError> + Send + 'static, Mempool::Future: Send,

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pub fn spawn( config: &Config, peer_set: PeerSet, mempool: Mempool, sync_status: SyncStatus, chain_tip_change: ChainTipChange, ) -> JoinHandle<Result<(), BoxError>>

Spawn an asynchronous task to run the mempool crawler.

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async fn wait_until_enabled_by_debug(&mut self) -> Result<(), RecvError>

Waits until the mempool crawler is enabled by a debug config option.

Returns an error if communication with the state is lost.

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async fn wait_until_enabled(&mut self) -> Result<(), RecvError>

Waits until the mempool crawler is enabled.

Returns an error if communication with the syncer or state is lost.

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pub async fn run(self) -> Result<(), BoxError>

Periodically crawl peers for transactions to include in the mempool.

Runs until the SyncStatus loses its connection to the chain syncer, which happens when Zebra is shutting down.

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async fn crawl_transactions(&mut self) -> Result<(), BoxError>

Crawl peers for transactions.

Concurrently request FANOUT peers for transactions to include in the mempool.

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async fn handle_response(&mut self, response: Response) -> Result<(), BoxError>

Handle a peer’s response to the crawler’s request for transactions.

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async fn queue_transactions( &mut self, transaction_ids: HashSet<UnminedTxId>, ) -> Result<(), BoxError>

Forward the crawled transactions IDs to the mempool transaction downloader.

Auto Trait Implementations§

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impl<PeerSet, Mempool> Freeze for Crawler<PeerSet, Mempool>
where Mempool: Freeze, PeerSet: Freeze,

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impl<PeerSet, Mempool> !RefUnwindSafe for Crawler<PeerSet, Mempool>

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impl<PeerSet, Mempool> Send for Crawler<PeerSet, Mempool>
where Mempool: Send, PeerSet: Send,

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impl<PeerSet, Mempool> Sync for Crawler<PeerSet, Mempool>
where Mempool: Sync, PeerSet: Sync,

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impl<PeerSet, Mempool> Unpin for Crawler<PeerSet, Mempool>
where Mempool: Unpin, PeerSet: Unpin,

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impl<PeerSet, Mempool> !UnwindSafe for Crawler<PeerSet, Mempool>

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Change the background color to green
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Change the foreground color to magenta
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Change the background color to magenta
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Change the foreground color to purple
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Change the background color to purple
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Change the foreground color to cyan
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Change the background color to cyan
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Change the foreground color to white
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Change the background color to white
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Change the foreground color to bright black
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Change the background color to bright black
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Change the foreground color to bright red
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fn on_bright_red(&self) -> BgColorDisplay<'_, BrightRed, Self>

Change the background color to bright red
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Change the foreground color to bright green
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fn on_bright_green(&self) -> BgColorDisplay<'_, BrightGreen, Self>

Change the background color to bright green
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Change the foreground color to bright yellow
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Change the background color to bright yellow
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Change the foreground color to bright blue
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fn on_bright_blue(&self) -> BgColorDisplay<'_, BrightBlue, Self>

Change the background color to bright blue
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fn bright_magenta(&self) -> FgColorDisplay<'_, BrightMagenta, Self>

Change the foreground color to bright magenta
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Change the background color to bright magenta
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fn bright_purple(&self) -> FgColorDisplay<'_, BrightMagenta, Self>

Change the foreground color to bright purple
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fn on_bright_purple(&self) -> BgColorDisplay<'_, BrightMagenta, Self>

Change the background color to bright purple
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fn bright_cyan(&self) -> FgColorDisplay<'_, BrightCyan, Self>

Change the foreground color to bright cyan
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fn on_bright_cyan(&self) -> BgColorDisplay<'_, BrightCyan, Self>

Change the background color to bright cyan
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fn bright_white(&self) -> FgColorDisplay<'_, BrightWhite, Self>

Change the foreground color to bright white
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fn on_bright_white(&self) -> BgColorDisplay<'_, BrightWhite, Self>

Change the background color to bright white
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fn bold(&self) -> BoldDisplay<'_, Self>

Make the text bold
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fn dimmed(&self) -> DimDisplay<'_, Self>

Make the text dim
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fn italic(&self) -> ItalicDisplay<'_, Self>

Make the text italicized
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fn underline(&self) -> UnderlineDisplay<'_, Self>

Make the text underlined
Make the text blink
Make the text blink (but fast!)
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fn reversed(&self) -> ReversedDisplay<'_, Self>

Swap the foreground and background colors
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fn hidden(&self) -> HiddenDisplay<'_, Self>

Hide the text
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Cross out the text
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fn color<Color>(&self, color: Color) -> FgDynColorDisplay<'_, Color, Self>
where Color: DynColor,

Set the foreground color at runtime. Only use if you do not know which color will be used at compile-time. If the color is constant, use either [OwoColorize::fg] or a color-specific method, such as [OwoColorize::green], Read more
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fn on_color<Color>(&self, color: Color) -> BgDynColorDisplay<'_, Color, Self>
where Color: DynColor,

Set the background color at runtime. Only use if you do not know what color to use at compile-time. If the color is constant, use either [OwoColorize::bg] or a color-specific method, such as [OwoColorize::on_yellow], Read more
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fn fg_rgb<const R: u8, const G: u8, const B: u8>( &self, ) -> FgColorDisplay<'_, CustomColor<R, G, B>, Self>

Set the foreground color to a specific RGB value.
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fn bg_rgb<const R: u8, const G: u8, const B: u8>( &self, ) -> BgColorDisplay<'_, CustomColor<R, G, B>, Self>

Set the background color to a specific RGB value.
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fn truecolor(&self, r: u8, g: u8, b: u8) -> FgDynColorDisplay<'_, Rgb, Self>

Sets the foreground color to an RGB value.
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fn on_truecolor(&self, r: u8, g: u8, b: u8) -> BgDynColorDisplay<'_, Rgb, Self>

Sets the background color to an RGB value.
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fn style(&self, style: Style) -> Styled<&Self>

Apply a runtime-determined style
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Calls .tap_mut() only in debug builds, and is erased in release builds.
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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
where Self: Borrow<B>, B: ?Sized,

Calls .tap_borrow() only in debug builds, and is erased in release builds.
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fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self
where Self: BorrowMut<B>, B: ?Sized,

Calls .tap_borrow_mut() only in debug builds, and is erased in release builds.
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fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self
where Self: AsRef<R>, R: ?Sized,

Calls .tap_ref() only in debug builds, and is erased in release builds.
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fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self
where Self: AsMut<R>, R: ?Sized,

Calls .tap_ref_mut() only in debug builds, and is erased in release builds.
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
where Self: Deref<Target = T>, T: ?Sized,

Calls .tap_deref() only in debug builds, and is erased in release builds.
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
where Self: DerefMut<Target = T> + Deref, T: ?Sized,

Calls .tap_deref_mut() only in debug builds, and is erased in release builds.
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impl<T> TryConv for T

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fn try_conv<T>(self) -> Result<T, Self::Error>
where Self: TryInto<T>,

Attempts to convert self into T using TryInto<T>. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more